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7 Operation via a Light Controller
For operation via a light controller with DMX512 proto-
col (e. g. DMX-1440 or DMX-510USB by "img Stage
Line"), the LED-820DMX is equipped with 3 DMX con-
trol channel. The functions of the channels and the
DMX values can be found on the following page.
7.1 Connection
As a DMX interface, the unit is provided with 3-pole
XLR jacks of the following pin configuration:
Pin 1 = ground, 2 = DMX-, 3 = DMX+
For connection, special cables for high data flow should
be used. Standard microphone cables with screening
and a minimum cross section of 2 × 0.22 mm
a capacity as low as possible can only be recom-
mended for a total cable length of up to 100 m. For
cable lengths exceeding 150 m it is recommended to
insert a DMX level matching amplifier (e. g. SR-
103DMX by "img Stage Line").
1) Connect the DMX INPUT (5) to the DMX output of
the light controller.
2) Connect the DMX OUTPUT (6) to the DMX input of
the following light effect unit; connect its output
again to the input of the following unit, etc. until all
light effect units have been connected in a chain.
3) Terminate the DMX output of the last DMX unit in
the chain with a 120 Ω resistor (> 0.3 W): Solder the
resistor to the pins 2 and 3 of an XLR plug and con-
nect the plug to the DMX output or use a corre-
sponding terminating plug (e. g. DLT-123 by "img
Stage Line").
7.2 Adjusting the start address
For operating the LED-820DMX with a light controller,
adjust the DMX start address for the first DMX chan-
nel. If e. g. address 17 on the controller is provided for
selecting the colour of the light beam, adjust the start
address 17 on the LED-820DMX.
The other functions of the LED-820DMX will then
automatically be assigned to the following addresses
(in this example 18 and 19). As the next possible start
address for the following DMX-controlled unit, address
20 could be used in this example.
1) To adjust the DMX start address, press the button
MENU (12) once so that the display (7) will show
. Make sure that the next button is pressed
within 8 seconds, otherwise the adjusting process
will end automatically.
2) Press the button ENTER (14). The current address
will be displayed.
3) Adjust the address with the button
memorize with the button ENTER.
4) To deactivate the menu, keep the button MENU
pressed until the start address or the operating mode
selected is displayed again or wait for approx. 8 s.
5) Once the control signals from the DMX controller
are received, the red LED DMX (11) will light up and
the start address will be displayed. It will now be
possible to operate the LED-820DMX with the DMX
controller.
To activate the light beam, set the DMX channel 2
for the dimmer to bright and the DMX channel 3 for
the stroboscope functions to a DMX value greater
than 7.
8 Additional Functions
2
and with
8.1 Indication of operating hours, temperature
and firmware version
Press the button MENU (12) so many times until the
display (7) shows the corresponding menu item:
Press the button ENTER (14) to confirm the selection;
the display will indicate the desired information. After
8 seconds, the unit will return to the previous operating
mode.
8.2 Self-test
To test the unit, a short test programme can be started.
Press the button MENU (12) so many times until the
display (7) shows
and the test run will start. At the end of the test, the light
beam will be deactivated and the indication
flash. Then the unit will return to the previous operat-
ing mode.
8.3 Reset
In case of malfunction, a reset of the unit may eliminate
the problem:
1) Press the button MENU (12) so many times until the
display (7) shows
2) Press the button ENTER (14). During the reset,
the previous operating mode.
or
(13) and
to indicate the temperature (°C) inside the unit
to indicate the operating hours
to indicate the firmware version
(operating system of the unit)
. Press the button ENTER (14)
(reset).
will be displayed. Then the unit will return to
GB
will
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